Duct Esp Calculation Excel Online

| CFM | 6" round | 8" round | 10" round | 12" round | |------|---------|---------|----------|----------| | 100 | 0.18 | 0.06 | 0.02 | 0.01 | | 200 | 0.58 | 0.18 | 0.06 | 0.02 | | 400 | - | 0.58 | 0.22 | 0.08 |

| A | B | C | D | E | F | G | |---|---|---|---|---|---|---| | Section | Q (CFM) | Duct Size (in) | Length (ft) | Fitting Type | Fitting Qty | Pressure Drop (in w.g.) | duct esp calculation excel

If an elbow has EqL = 25 ft and friction rate = 0.08 in/100ft, then dynamic loss = 25/100 * 0.08 = 0.02 in w.g. | CFM | 6" round | 8" round

To calculate External Static Pressure (ESP) in Excel, you must sum the friction losses from straight ductwork, the dynamic losses from fittings, and the pressure drops from accessories along the system's "critical path". the dynamic losses from fittings